Home / 239,309.20-330,242.16-131,889.20

Finding the Fourth Proportional to 239,309.20, 330,242.16 and 131,889.20

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Solution

The fourth proportional to 239,309.20, 330,242.16 and 131,889.20 is: 182,004.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,309.20 : 330,242.16 = 131,889.20 : x
  2. Step 2: Convert to fraction form
    239,309.20/330,242.16 = 131,889.20/x
  3. Step 3: Cross multiply
    239,309.20x = 330,242.16 × 131,889.20
  4. Step 4: Simplify right side
    239,309.20x = 43,555,374,288.67
  5. Step 5: Solve for x
    x = 43,555,374,288.67/239,309.20
  6. Step 6: Final answer
    x = 182,004.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.